Redirecting Sunlight into Dim Alleyways (image)

Caption
This is a dim street in a dense urban area in Egypt (left) and a model of a dim alleyway for simulation (right).
Credit
Credit: Optics Express
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The Optical Society
This is a dim street in a dense urban area in Egypt (left) and a model of a dim alleyway for simulation (right).
Credit: Optics Express
None
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